November 2025 in “The Journal of Immunology” This study found that CD80 expression in wound-activated hair follicle stem cells induces Foxp3 expression in effector T cells, facilitating wound repair by converting them into regulatory T cells.
October 2025 in “Cell Reports” This study found that regulatory T cells accumulate in hair follicle epithelium via the Cxcr4-Cxcl12 axis, partially influenced by glucocorticoid receptor signaling, promoting hair regeneration; similar mechanisms were observed in human and murine skin.
September 2024 in “Journal of the American Academy of Dermatology” In this study, γδTregs showed potential as a cell-based therapy for alopecia areata by preventing hair loss and promoting hair regrowth in humanized AA models.
January 2024 in “Elsevier eBooks” The authors concluded that increasing regulatory T cells in patients with alopecia areata may improve hair follicle regeneration by reducing autoimmune responses, suggesting a potential new therapeutic approach since current treatments are often ineffective with high relapse rates.
November 2023 in “Journal of Investigative Dermatology” This study found that γδTregs significantly reduced autoimmune effects in humanized alopecia areata models, suggesting their potential as a novel cell-based therapeutic approach for managing the condition.
October 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that neonatal Regulatory T cells are crucial for maintaining PPARγ signaling in hair follicles, which supports melanocyte stem cell function and skin pigmentation during early postnatal development.
November 2022 in “Journal of Investigative Dermatology” This study found that autologous γdTregs displayed significant protective effects on alopecia areata-affected human scalp hair follicles in both ex vivo and in vivo settings, suggesting potential for future cell-based therapy.
September 2023 in “Journal of the American Academy of Dermatology” Increased Treg cells and IL-10 may help quick recovery in acute diffuse and total alopecia.
140 citations
,
March 2013 in “The journal of immunology/The Journal of immunology” This study found that IL-7 is crucial for the survival of memory regulatory T cells in the skin of mice, whereas IL-2 is essential for their initial generation but not for their maintenance.
49 citations
,
August 2022 in “Frontiers in Immunology” This paper discusses the evolving understanding of psoriasis pathogenesis with no new clinical findings; the authors highlight the role of T-cell plasticity and regulatory cells, calling for further clinical applications using single-cell technologies.
5 citations
,
February 2024 in “Journal of Investigative Dermatology” This study identified a reduced frequency of IL-10-producing regulatory B cells in alopecia areata patients, suggesting a protective role by these cells in disease development by regulating key immune mediators, such as IFN-γ and NKG2D+CD8+ T cells.
November 2025 in “The Journal of Immunology” In a murine model of alopecia areata, this study observed that the IL-2 fusion protein HCW9302 helped prevent disease development by expanding regulatory T cells and reducing disease-causing effector T cell infiltrates, suggesting potential for using IL-2 fusion proteins in alopecia areata treatment.
November 2024 in “Journal of Investigative Dermatology” γδT cells can protect hair follicles from alopecia areata and promote hair regrowth.
This study found that γδTregs can prevent and treat alopecia areata in a mouse model with human scalp transplants, suggesting potential for cell-based therapies in autoimmune diseases like alopecia.
July 2024 in “Journal of Investigative Dermatology” Expanding regulatory T cells may help treat alopecia areata by reducing harmful immune cells.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that patients with alopecia areata had significantly lower frequencies of IL-10 producing CD19+CD24hiCD38hi regulatory B cells compared to healthy volunteers, suggesting a potential role for these cells in the autoimmune response seen in the condition.
April 2023 in “Journal of Investigative Dermatology” This research explored the roles of various T cell types in chronic alopecia areata, finding that increased severity of lesions and hair loss may be linked to decreased lesional Foxp3+ Tregs, with a notable role for IL-17 and Th17 lymphocytes in the pathological process.
9 citations
,
April 2018 in “Canadian Journal of Animal Science” This study found that LEF-1 expression influences dermal papilla cells' proliferation through Wnt signaling, impacting the potential for cashmere yield improvement.
In this study, researchers found that FGF9 plays a significant role in sheep wool growth by accelerating the proliferation and cell cycle of dermal papilla cells, potentially through regulation of the Wnt/β-catenin signaling pathway.
May 2019 in “Cytotherapy” This study explored how Australian patients and their carers perceived autologous stem cell interventions, highlighting factors like illness experience and unrealistic expectations that influenced their decision-making in an unregulated market.
1 citations
,
June 2021 in “Journal of pharmacopuncture” This study found that while CBD did not change gene expression including β-catenin in hair follicles, it restored decreased β-catenin expression in dermal papilla cells affected by testosterone or PMA, suggesting a potential modulating function on alopecia.
January 2013 in “Chinese Journal of Dermatovenereology of Integrated Traditional and Western Medicine” This study found that YiFa compound medicated serum significantly promoted the proliferation of follicle stem cells and increased mRNA expression of K19 and β1 integrin in a mouse model, suggesting a potential mechanism for treating alopecia.
January 2013 in “Shiyong yixue zazhi” In this study with mouse follicle stem cells, astraglus polysaccharide increased markers of cell proliferation and gene expression, suggesting a potential mechanism for treating alopecia and promoting hair growth.
30 citations
,
July 2019 in “PloS one” This study found that T-regulatory cells, specifically the FOXP3 CD39 subset, were significantly reduced in both circulation and hair follicles of alopecia areata patients compared to healthy subjects, suggesting potential therapeutic targets.
22 citations
,
September 2020 in “The journal of investigative dermatology/Journal of investigative dermatology” This review highlights the possible role of T regulatory cells in the immune-related mechanisms of alopecia areata but reports no new clinical findings.
9 citations
,
March 2022 in “Frontiers in Immunology” This review discusses the roles and mechanisms of tissue-resident regulatory T cells in immune regulation and tissue homeostasis, but reports no new experimental results.
January 2019 in “eScholarship (California Digital Library)” This study concluded that CNS1-dependent peripheral Tregs do not significantly impact type 1 diabetes in the NOD mouse model, with thymus-derived Tregs being the primary regulators.
11 citations
,
March 2013 in “Journal of Applied Biomedicine” This study found that β-catenin is essential for hair follicle stem cell proliferation and may regulate this process through the PI3K/Akt pathway, suggesting its potential as a therapeutic target.
August 2011 in “Planta Medica” This study suggests that the hair growth-promoting effects of 4-O-methylhonokiol may be linked to its ability to modulate TGF-β-induced cell cycle arrest and oxidative stress in HaCaT cells.
26 citations
,
February 2021 in “FEBS Journal” This review discusses potential immune therapies targeting regulatory T cells for age-related diseases and emphasizes the need for further research to translate these therapies into clinical practice.